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From: jtc@motcad.portal.com (J.T. Conklin)
Newsgroups: alt.fax,comp.graphics
Subject: TIFF 5.0 and TIFF Class F
Message-ID: <1990Aug10.211410.515@motcad.portal.com>
Date: 10 Aug 90 21:14:10 GMT
Sender: jtc@motcad.portal.com (J.T. Conklin)
Followup-To: alt.fax
Organization: CADnet Inc., San Ramon CA
Lines: 19

Parts of the TIFF Class F specification have allways bothered me, but
until recently, I have been willing to overlook the warts because of
the desirability of a "standard" file format for storing facsimile
documents.

The one point that I feel must be resolved between TIFF 5.0 and TIFF/F
is the fact that TIFF 5.0 requires RTCs be included in Fax compatable
G3 compression, while TIFF/F requires that RTCs not be included.

I belive the change in semantics, without a corresponding method of
determining which method has been used, needs to be address.  To that
end, I suggest that a new bit be added to the Group3Options tag that
indicates which method is to be used.

	--jtc

-- 
J.T. Conklin	CADnet Inc, San Ramon California
		jtc@motcad.portal.com, ...!portal!motcad!jtc